Steel cladding for recesses in buildings has inner corners and boards in various dimensions with connectors locked together by tongue and groove joints with holes for locking bolts

摘要

To clad a recess in a building, a steel shell is formed by components locked together with a tongue and groove joints The shell has inner corners, boards in various widths, and connectors. The assembled shell is held together with stability by bolts through prepared holes (1). The groove at the inner corners and connectors has a width of at least 2.5 cm.